Airbase API
Programmatically access Airbase spend data, vendors, bills, cards, reimbursements, approvals, and accounting workflows with a stable REST API. Supergood builds and operates production-grade, unofficial Airbase integrations so your team can automate AP and expense operations without heavy custom engi
What is Airbase?
Airbase is a cloud platform for corporate spend management that unifies AP automation, corporate cards, reimbursements, approvals, and accounting sync for finance teams. Companies use Airbase to manage vendors and bills, issue and control physical/virtual cards, route purchase and payment approvals, capture receipts, reimburse employees, and push clean, coded entries to their accounting system.
Core product areas include:
- Spend Controls & Corporate Cards (virtual and physical, merchant/category restrictions, spend limits)
- AP Automation (vendor management, bills/invoices, payments, PO/purchase requests)
- Employee Reimbursements (policy checks, receipt capture, approvals)
- Approvals & Workflows (multi-step, role-based routing, audit trails)
- Accounting Sync (GL accounts, departments/projects, tax codes, multi-entity/currency)
Common data entities:
- Companies, Users, Roles/Permissions (Finance Admin, Cardholder, Approver, Employee)
- Vendors (profiles, payment terms, banking details)
- Bills/Invoices (line items, taxes, approvals, payments)
- Cards & Transactions (limits, MCC restrictions, budgets, receipts)
- Expenses/Reimbursements (policy flags, coding, payout status)
- Purchase Requests & Approvals (requester, approvers, status)
- Budgets, Departments, Projects (cost centers, allocations)
- GL Accounts & Tax Codes (accounting categories)
- Attachments & Receipts (files, OCR data, audit trails)
The Airbase Integration Challenge
Finance teams rely on Airbase daily, but turning portal-first workflows into API-driven automation is non-trivial:
- Role-aware approvals: Requesters, approvers, finance, and cardholders see different steps, limits, and policy outcomes
- Financial rigor: GL coding, departments/projects, tax handling, and multi-entity/multi-currency require careful normalization
- Card-specific controls: MCC/category restrictions, per-transaction/monthly limits, and merchant rules complicate issuance flows
- Receipt and audit requirements: Attachments, compliance flags, and exception logging demand robust handling
- API access: Teams report limited official API coverage, tier-gated access, and data export friction for automation use cases
- Authentication complexity: SSO/MFA and session lifecycles complicate headless workflows for bots and services
- Data spread: Key objects span vendors, bills, cards, reimbursements, and approvals with context across multiple views
How Supergood Creates Airbase APIs
Supergood reverse-engineers authenticated browser flows and network interactions to deliver a resilient API endpoint layer for your Airbase tenant.
- Handles username/password, SSO/OAuth, and MFA (SMS, email, TOTP) securely
- Maintains session continuity with automated refresh and change detection
- Normalizes responses so you can integrate once and rely on consistent objects across modules
- Aligns with customer entitlements and role-based permissions to ensure compliant access
Getting Started
- Schedule Integration Assessment
Book a 30-minute session to confirm your modules, licensing, and authentication model.
- Supergood Builds and Validates Your API
We deliver a hardened Airbase adapter tailored to your workflows and entitlements.
- Deploy with Monitoring
Go live with continuous monitoring and automatic adjustments as Airbase evolves.
API Endpoints
Authentication
/sessionsEstablish a session using credentials. Supergood manages MFA (SMS, email, TOTP) and SSO/OAuth when enabled. Returns a short-lived auth token maintained by the platform.
Authentication
/sessions/refreshRefresh an existing token to keep sessions uninterrupted.
Vendors
/vendorsList vendors with filters and summary details.
Bills
/billsCreate a vendor bill/invoice with line items, taxes, attachments, and approval metadata.
Virtual Cards
/cards/virtualIssue a virtual card with spend limits, MCC restrictions, and budget controls.
Expenses
/expenses/{expenseId}Update expense coding, attach receipts, and manage reimbursement state.
Use Cases
AP & Vendor Automation
- Mirror vendors and bills into your internal systems - Create vendor bills from procurement or intake workflows - Attach quotes/invoices and route approvals programmatically
Cards & Spend Controls
- Issue virtual cards with policy rules from your product - Update limits and MCC restrictions dynamically based on risk signals - Ingest transactions and receipts for real-time monitoring and alerts
Reimbursements & Policy Enforcement
- Sync employee expenses and receipt status to analytics - Flag exceptions (missing receipts, over-policy) and route for review - Update GL/department/project coding and reimbursement status
Accounting Sync & Reporting
- Normalize GL accounts, tax codes, and departments - Push coded transactions to accounting (e.g., QuickBooks, Xero, NetSuite) - Generate budget and spend dashboards across entities and currencies
Technical Specifications
Authentication
Username/password with MFA (SMS, email, TOTP) and SSO/OAuth where enabled; supports service accounts or customer-managed credentials
Response format
JSON with consistent resource schemas and pagination across modules
Rate limits
Tuned for enterprise throughput while honoring customer entitlements and usage controls
Session management
Automatic reauth and cookie/session rotation with health checks
Data freshness
Near real-time retrieval of vendors, bills, cards/transactions, reimbursements, and approvals
Security
Encrypted transport, scoped tokens, and audit logging; respects Airbase role-based permissions and approval visibility
Webhooks
Optional asynchronous delivery for long-running workflows (e.g., approvals, reimbursements, card transactions)
Latency
Sub-second responses for list/detail queries under normal load
Throughput
Designed for high-volume vendor/bill sync and card transaction ingestion
Reliability
Retry logic, backoff, and idempotency keys minimize duplicate actions
Adaptation
Continuous monitoring for UI/API changes with rapid adapter updates
Frequently asked questions
Supergood supports workflows across commonly used modules such as AP Automation (Vendors, Bills, Payments), Spend Controls (Cards, Transactions), Reimbursements (Expenses, Receipts), and Approvals/Accounting Sync (GL Accounts, Departments/Projects), subject to your licensing and entitlements. We scope coverage during integration assessment.
We support username/password + MFA (SMS, email, TOTP) and can operate behind SSO/OAuth when enabled. Sessions are refreshed automatically with secure challenge handling.
Yes. We can normalize GL, departments/projects, tax codes, and line items to match your ERP/accounting schema and deliver updates via webhooks or polling while complying with rate and permission constraints. We commonly integrate with QuickBooks, Xero, and NetSuite.
Yes. We can issue virtual cards, set spend limits, MCC/merchant restrictions, and budget ties, then ingest transactions and receipts for monitoring and coding.